National Treasure (2004)

Character mistake: Nick states that Wall Street was originally a wall (correct) built to defend against the British (incorrect.) The original wall was a wooden palisade built in the 16th Century to defend the colonists against invading natives and to prevent livestock from wandering uptown.

Character mistake: At the gala, Ben describes to Abigail how the Founding Fathers would have been hanged, beheaded, drawn and quartered, and had their entrails burned had they lost the war. However, only hanging and beheading were acceptable practices in Britain at the time; Ben's information is off by several decades.